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APH · Amphenol Corp /De/ · Holdings

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$87.70 -0.92 (-1.04%)
Market Cap
$416.11B
Shares
4.93B
Volume · Oct 7 9.19M Avg daily vol (23 sessions) 11.96M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 2,354
Total Value: $395,953,451,980
Total Shares: 1,181,377,681
Showing 1–100 of 2,409 holdings by value · page 1 of 25

Institutional Ownership Trend

28 quarters

Holder Concentration

Across 2,352 13F filers
Top Holder
9.0%
Sep 2023 → Jun 2026 · range 9.0% – 14.4%
of institutional value
Top 5
31.6%
Sep 2023 → Jun 2026 · range 31.6% – 42.9%
of institutional value
Top 10
45.4%
Sep 2023 → Jun 2026 · range 45.4% – 55.0%
of institutional value
HHI
283
Sep 2023 → Jun 2026 · range 283 – 492
Broadly held
Showing 100 of 2,409
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 820313 CUSIP 032095101 13F (30d) 66 filings 48 filers Visit website Investor relations